Fountain-pen filler.



N 0 S m R E B 0 R F G FOUNTAIN PEN FILLER.

APPLICATION FILED MAY 26, 1908.

Patented Mar. 29, 1910.

lvihwoazo I GEORGE FRANCIS ROBERTSON, OF CHARLOTTE, NORTH CAROLINA.

FOUNTAIN-PEN FILLER.

Application filed May 26, 1908.

To all whom it may concern:

Be it known that I, Gnonon FRANCIS Ronnn'rson, a citizen of the UnitedStates, residing at Charlotte, in the county of Mecklenburg and State ofNorth Carolina, have invented certain new and useful Improve-. ments inFountain-Pen Fillers, of which the following is a specification.

This invention relates to fountain pens, and more particularly tofillers therefor and has for an object to provide a device which may beconveniently applied to fountain pens of various forms without injurythere to and which will effectively serve as ameans for filling thereservoir of the pen without soiling the hands of the user.

A further object of this invention is to provide an attachment of theabove described character for use in connection with fountain pens bymeans of which their reservoirs may be filled by suction in a convenientand effective manner when the nib of a pen is inserted within an inkcontainer.

Other objects and advantages will be apparent from the followingdescription and it will be understood that changes in the specificstructure shown and described may be made within the scope of the claimwithout departing from the spirit of the invention.

In the drawings forming a portion of this specification, and in whichlike numerals of reference indicate similar parts in the several views,Figure 1 is a sectional view of a fountain pen showing the applicationof the present invention thereto, the same being in an inoperativeposition Fig. 2 is a similar view the device being in an operativeposition, Fig. 3 is a detail sectional view of a portion of the pistonrod and head, Fig. 1 is a transverse sectional view on the line 4L-1 ofFig. 1. s

Referring now more particularly to the drawings, there is shown afountain pen of usual construction comprising an elongated barrel 11having a closed head 12 at one end and which is provided at its otherend with a nib 13.

The head 12 is provided with a centrally located threaded passage 14,and slidably mounted within the barrel of the pen there is shown apiston rod 15 which is also disposed for movement in the passage 1 1formed in the head 12. The piston rod, at its outer end, is providedwith a milled or knurled head 15, and inwardly of the head,

Specification of Letters Patent.

Patented Mar. 29, 1910.

Serial No. 435,184.

the rod is threaded as shown at 16 for engagement at times as will behereinafter described in the threaded passage 1 1 formed in the head 12.

The rod 15, at its extreme inner end is also threaded as shown at 17 andis thus arranged to receive an internally threaded collar 18 providedwith an internally and externally threaded sleeve 19. The sleeve 19 isthus arranged to receive a piston head 20 which is preferably formed ofsoft rubber, cork or the like, and which is securely held in place uponthe sleeve by means of a disk 21 having an internally threaded passage22 for engagement with the externally threaded portion of the sleeve 19.

The internal and external threads of the sleeve 19, are right and lefthand thread respectively. The interior right hand threads of the sleeveare adapted to be engaged by the threaded extremities of the. rods 15,whereby the piston may be retained in its operative and inoperativepositions. It will be understood that the frictional engagement of thepiston 20 is such that no rotative movement thereof will occur when theend 17 of the rod 15 is released from engagement with the interiorthreads of the sleeve.

Upon reference to Fig. 1 of the drawings, it is obvious that the deviceis in an inoperative position, and upon movement of the head 15 in anoutward direction it will be understood that the rod 15 which is carriedthereby will be moved in a position whereby its threaded end 17 may besecurely engaged with the internally threaded portion of the sleeve 19.

Upon reference to Fig. 2 of the drawings it will be seen that the nib 13of the pen may be inserted within a suitable ink container, and uponmovement of the rod 15 in an outward direction, it is obvious that inkmay be drawn by suction into the barrel 11 of the pen.

When the device is not in use the threaded portion 17 of the rod may beconveniently disengaged from the sleeve whereby the pis ton head may lieupon the underside of the cap 12 at which time, the threaded portion 16may be engaged in the passage 14 formed in the head whereby the head 15may be tightly engaged against the outer side of the head.

It will thus be seen that a simple, cheap and durable device is providedwhich may be applied to fountain pens of ordinary con- 1 exterior, rightand left hand threads respecstruction and which will automatically serveto fill the barrel of the pen without soiling the fingers of the user.

What is claimed is In a fountain pen filler, the combination with abarrel having a threaded aperture formed ififlie upper end thereof, of apiston rod threaded at its ends, slidably disposed iii said barrel, oneof the threaded ends of said rod being adapted to engage in the aperturein said barrel, a knurled head secured to the upper end of said rod, acollar disposed on the lower extremity of said rod, said collar having asleeve integrally formed therewith and provided with interior andtively, the lower end of said rod being engaged with the interiorthreads of said sleeve, a fle ible piston engaged with the exteriorThreads of said sleeve, a washer threaded on said sleeve adapted toclamp said piston in position against the collar, said sleeve beingadapted to have threaded engagement with the upper end of said rod toretain the piston in inoperative position. In testimony whereof I aflixmy signature, in presence of two witnesses.

GEORGE FRANCIS ROBERTSON. WVitnesses A. M. MCDONALD, JNo. B. ALEXANDER.

